So we’ve received our school allocation, and unfortunately we didn’t get our first choice - we’ve got our fifth (we’re in London). The school we had hoped for has two classes and a PAN of 50. Would we be able to appeal on the grounds that this is less than 30 pupils per class, and they should be able to admit 10 more children? What should we be aiming to put in our appeal to give us the best chance of success?